Difference between revisions of "Copper(II) perchlorate"

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(Created page with "{{Chembox | Name = Copper(II) perchlorate | Reference = | IUPACName = Copper(II) perchlorate | PIN = | SystematicName = | OtherNames = Copper diperchlorate<br>Cupric perchlora...")
 
(Preparation)
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: CuO + 2 HClO<sub>4</sub> → Cu(ClO<sub>4</sub>)<sub>2</sub> + H<sub>2</sub>O
 
: CuO + 2 HClO<sub>4</sub> → Cu(ClO<sub>4</sub>)<sub>2</sub> + H<sub>2</sub>O
  
Anhydrous copper(II) perchlorate can be prepared by [[silver perchlorate]] in [[diethyl ether]], followed by addition of copper(II)bromide. Silver bromide precipitates out of the solution, while copper(II) perchlorate can be obtained by evaporating the ether.<ref>Monnier, G.; Annales de Chimie (Cachan, France); vol. 2; (1957); p. 14 - 57 ; (from Gmelin)</ref> Copper(II) chloride can also be used.<ref>Dartiguenave, Michele; Dartiguenave, Yves; Guitard, Andre; Mari, Alain; Beauchamp, Andre L.; Polyhedron;
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According to one source in literature, anhydrous copper(II) perchlorate can be prepared by [[silver perchlorate]] in [[diethyl ether]], followed by addition of copper(II)bromide. Silver bromide precipitates out of the solution, while copper(II) perchlorate can be obtained by evaporating the ether.<ref>Monnier, G.; Annales de Chimie (Cachan, France); vol. 2; (1957); p. 14 - 57 ; (from Gmelin)</ref> A different source indicates that [[copper(II) chloride]] can also be used, but no product is given.<ref>Dartiguenave, Michele; Dartiguenave, Yves; Guitard, Andre; Mari, Alain; Beauchamp, Andre L.; Polyhedron; vol. 8; (1989); p. 317 - 324</ref>
vol. 8; (1989); p. 317 - 324</ref>
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==Projects==
 
==Projects==

Revision as of 18:23, 9 September 2023

Copper(II) perchlorate
Names
IUPAC name
Copper(II) perchlorate
Other names
Copper diperchlorate
Cupric perchlorate
Properties
Cu(ClO4)2 (anhydrous)
Cu(ClO4)2·6 H2O (hexahydrate)
Molar mass 262.447 g/mol (anhydrous)
370.539 g/mol (hexahydrate)
Appearance Blue crystalline solid
Odor Odorless
Density 2.225 g/cm3 (25 °C)
Melting point 82 °C (180 °F; 355 K)
Boiling point 100–102 °C (212–216 °F; 373–375 K) (decomposes)
146 g/100 ml (30 °C)
Solubility Soluble in acetic acid, acetone, diethyl ether, ethanol, methanol
Solubility in furfural 69 g/100 ml (20 °C)[1]
Vapor pressure ~0 mmHg
Thermochemistry
-1,915 kJ/mol
Hazards
Safety data sheet Sigma-Aldrich (hexahydrate)
Related compounds
Related compounds
Silver perchlorate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Copper(II) perchlorate is an inorganic chemical compound, a salt of copper and perchloric acid. It has the formula Cu(ClO4)2, though it is more commonly encountered as hexahydrate, Cu(ClO4)2·6 H2O.

Properties

Chemical

Copper(II) perchlorate decomposes when heated.

Physical

Copper(II) perchlorate is a hygroscopic blueish solid, soluble in water.

Availability

Copper(II) perchlorate is sold by chemical suppliers.

Preparation

Copper(II) perchlorate can be prepared by dissolving copper(II) oxide with perchloric acid.[2]

CuO + 2 HClO4 → Cu(ClO4)2 + H2O

Copper metal must not be used as the reaction is claimed to be dangerous.

If perchloric acid is not available but other perchlorate salts are, addition of aq. copper(II) sulfate to aq. barium perchlorate can work:

CuO + 2 HClO4 → Cu(ClO4)2 + H2O

According to one source in literature, anhydrous copper(II) perchlorate can be prepared by silver perchlorate in diethyl ether, followed by addition of copper(II)bromide. Silver bromide precipitates out of the solution, while copper(II) perchlorate can be obtained by evaporating the ether.[3] A different source indicates that copper(II) chloride can also be used, but no product is given.[4]

Projects

Handling

Safety

Copper(II) perchlorate is a powerful oxidizer. Perchlorates are toxic.

Storage

Should be kept in a clean bottle, away from any reducing agents or combustible materials.

Disposal

Copper(II) perchlorate should be reduced to chloride and the copper recycled.

References

  1. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961 (Solubility Handbook. - T.1, Book.1. - M.-L.: IAN USSR, 1961)
  2. Nagy, L.; Zsikla, L.; Burger, K.; Rockenbauer, A.; Kiss, J. T.; Journal of Crystallographic and Spectroscopic Research; vol. 19; nb. 5; (1989); p. 911 - 918
  3. Monnier, G.; Annales de Chimie (Cachan, France); vol. 2; (1957); p. 14 - 57 ; (from Gmelin)
  4. Dartiguenave, Michele; Dartiguenave, Yves; Guitard, Andre; Mari, Alain; Beauchamp, Andre L.; Polyhedron; vol. 8; (1989); p. 317 - 324

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